[INFO] crate rust_tcp_ipc 0.3.1 is already in cache
[INFO] extracting crate rust_tcp_ipc 0.3.1 into work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/reg/rust_tcp_ipc/0.3.1
[INFO] extracting crate rust_tcp_ipc 0.3.1 into work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/reg/rust_tcp_ipc/0.3.1
[INFO] validating manifest of rust_tcp_ipc-0.3.1 on toolchain master#a850a426491e14186af2250549bf41256b5938d2
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of rust_tcp_ipc-0.3.1 on toolchain try#06a150c7d11500b41499224f165e9de1de096768
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing rust_tcp_ipc-0.3.1
[INFO] finished frobbing rust_tcp_ipc-0.3.1
[INFO] frobbed toml for rust_tcp_ipc-0.3.1 written to work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/reg/rust_tcp_ipc/0.3.1/Cargo.toml
[INFO] started frobbing rust_tcp_ipc-0.3.1
[INFO] finished frobbing rust_tcp_ipc-0.3.1
[INFO] frobbed toml for rust_tcp_ipc-0.3.1 written to work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/reg/rust_tcp_ipc/0.3.1/Cargo.toml
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking rust_tcp_ipc-0.3.1 against try#06a150c7d11500b41499224f165e9de1de096768 for pr-60162
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60162/worker-6/try#06a150c7d11500b41499224f165e9de1de096768:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/reg/rust_tcp_ipc/0.3.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] cb9257b58f526f96bfeee35fca36fc5f9176c2fe2eecd0bf8250b4e40d6badc2
[INFO] running `"docker" "start" "-a" "cb9257b58f526f96bfeee35fca36fc5f9176c2fe2eecd0bf8250b4e40d6badc2"`
[INFO] [stderr]     Checking rust_tcp_ipc v0.3.1 (/opt/crater/workdir)
[INFO] [stderr] warning: variant is never constructed: `Working`
[INFO] [stderr]   --> src/tests/example_protocol.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     Working,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `ProtocolExample`
[INFO] [stderr]   --> src/tests/example_protocol.rs:18:1
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub enum ProtocolExample {}
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `speed_check_tcp_minimal`
[INFO] [stderr]  --> src/tests/speed_comparison.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | fn speed_check_tcp_minimal() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Working`
[INFO] [stderr]   --> src/tests/example_protocol.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     Working,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `speed_check_tcp_minimal`
[INFO] [stderr]  --> src/tests/speed_comparison.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | fn speed_check_tcp_minimal() {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.50s
[INFO] running `"docker" "inspect" "cb9257b58f526f96bfeee35fca36fc5f9176c2fe2eecd0bf8250b4e40d6badc2"`
[INFO] running `"docker" "rm" "-f" "cb9257b58f526f96bfeee35fca36fc5f9176c2fe2eecd0bf8250b4e40d6badc2"`
[INFO] [stdout] cb9257b58f526f96bfeee35fca36fc5f9176c2fe2eecd0bf8250b4e40d6badc2